includes/api/ApiLogin.php

   1 <?php
   2 /**
   3  * Copyright © 2006-2007 Yuri Astrakhan "<Firstname><Lastname>@gmail.com",
   4  * Daniel Cannon (cannon dot danielc at gmail dot com)
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with this program; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  19  * http://www.gnu.org/copyleft/gpl.html
  20  *
  21  * @file
  22  */
  23
  24 use MediaWiki\Auth\AuthManager;
  25 use MediaWiki\Auth\AuthenticationRequest;
  26 use MediaWiki\Auth\AuthenticationResponse;
  27 use MediaWiki\Logger\LoggerFactory;
  28
  29 /**
  30  * Unit to authenticate log-in attempts to the current wiki.
  31  *
  32  * @ingroup API
  33  */
  34 class ApiLogin extends ApiBase {
  35
  36         public function __construct( ApiMain $main, $action ) {
  37                 parent::__construct( $main, $action, 'lg' );
  38         }
  39
  40         protected function getExtendedDescription() {
  41                 if ( $this->getConfig()->get( 'EnableBotPasswords' ) ) {
  42                         return 'apihelp-login-extended-description';
  43                 } else {
  44                         return 'apihelp-login-extended-description-nobotpasswords';
  45                 }
  46         }
  47
  48         /**
  49          * Format a message for the response
  50          * @param Message|string|array $message
  51          * @return string|array
  52          */
  53         private function formatMessage( $message ) {
  54                 $message = Message::newFromSpecifier( $message );
  55                 $errorFormatter = $this->getErrorFormatter();
  56                 if ( $errorFormatter instanceof ApiErrorFormatter_BackCompat ) {
  57                         return ApiErrorFormatter::stripMarkup(
  58                                 $message->useDatabase( false )->inLanguage( 'en' )->text()
  59                         );
  60                 } else {
  61                         return $errorFormatter->formatMessage( $message );
  62                 }
  63         }
  64
  65         /**
  66          * Executes the log-in attempt using the parameters passed. If
  67          * the log-in succeeds, it attaches a cookie to the session
  68          * and outputs the user id, username, and session token. If a
  69          * log-in fails, as the result of a bad password, a nonexistent
  70          * user, or any other reason, the host is cached with an expiry
  71          * and no log-in attempts will be accepted until that expiry
  72          * is reached. The expiry is $this->mLoginThrottle.
  73          */
  74         public function execute() {
  75                 // If we're in a mode that breaks the same-origin policy, no tokens can
  76                 // be obtained
  77                 if ( $this->lacksSameOriginSecurity() ) {
  78                         $this->getResult()->addValue( null, 'login', [
  79                                 'result' => 'Aborted',
  80                                 'reason' => $this->formatMessage( 'api-login-fail-sameorigin' ),
  81                         ] );
  82
  83                         return;
  84                 }
  85
  86                 $this->requirePostedParameters( [ 'password', 'token' ] );
  87
  88                 $params = $this->extractRequestParams();
  89
  90                 $result = [];
  91
  92                 // Make sure session is persisted
  93                 $session = MediaWiki\Session\SessionManager::getGlobalSession();
  94                 $session->persist();
  95
  96                 // Make sure it's possible to log in
  97                 if ( !$session->canSetUser() ) {
  98                         $this->getResult()->addValue( null, 'login', [
  99                                 'result' => 'Aborted',
 100                                 'reason' => $this->formatMessage( [
 101                                         'api-login-fail-badsessionprovider',
 102                                         $session->getProvider()->describe( $this->getErrorFormatter()->getLanguage() ),
 103                                 ] )
 104                         ] );
 105
 106                         return;
 107                 }
 108
 109                 $authRes = false;
 110                 $context = new DerivativeContext( $this->getContext() );
 111                 $loginType = 'N/A';
 112
 113                 // Check login token
 114                 $token = $session->getToken( '', 'login' );
 115                 if ( $token->wasNew() || !$params['token'] ) {
 116                         $authRes = 'NeedToken';
 117                 } elseif ( !$token->match( $params['token'] ) ) {
 118                         $authRes = 'WrongToken';
 119                 }
 120
 121                 // Try bot passwords
 122                 if (
 123                         $authRes === false && $this->getConfig()->get( 'EnableBotPasswords' ) &&
 124                         ( $botLoginData = BotPassword::canonicalizeLoginData( $params['name'], $params['password'] ) )
 125                 ) {
 126                         $status = BotPassword::login(
 127                                 $botLoginData[0], $botLoginData[1], $this->getRequest()
 128                         );
 129                         if ( $status->isOK() ) {
 130                                 $session = $status->getValue();
 131                                 $authRes = 'Success';
 132                                 $loginType = 'BotPassword';
 133                         } elseif ( !$botLoginData[2] ||
 134                                 $status->hasMessage( 'login-throttled' ) ||
 135                                 $status->hasMessage( 'botpasswords-needs-reset' )
 136                         ) {
 137                                 $authRes = 'Failed';
 138                                 $message = $status->getMessage();
 139                                 LoggerFactory::getInstance( 'authentication' )->info(
 140                                         'BotPassword login failed: ' . $status->getWikiText( false, false, 'en' )
 141                                 );
 142                         }
 143                 }
 144
 145                 if ( $authRes === false ) {
 146                         // Simplified AuthManager login, for backwards compatibility
 147                         $manager = AuthManager::singleton();
 148                         $reqs = AuthenticationRequest::loadRequestsFromSubmission(
 149                                 $manager->getAuthenticationRequests( AuthManager::ACTION_LOGIN, $this->getUser() ),
 150                                 [
 151                                         'username' => $params['name'],
 152                                         'password' => $params['password'],
 153                                         'domain' => $params['domain'],
 154                                         'rememberMe' => true,
 155                                 ]
 156                         );
 157                         $res = AuthManager::singleton()->beginAuthentication( $reqs, 'null:' );
 158                         switch ( $res->status ) {
 159                                 case AuthenticationResponse::PASS:
 160                                         if ( $this->getConfig()->get( 'EnableBotPasswords' ) ) {
 161                                                 $this->addDeprecation( 'apiwarn-deprecation-login-botpw', 'main-account-login' );
 162                                         } else {
 163                                                 $this->addDeprecation( 'apiwarn-deprecation-login-nobotpw', 'main-account-login' );
 164                                         }
 165                                         $authRes = 'Success';
 166                                         $loginType = 'AuthManager';
 167                                         break;
 168
 169                                 case AuthenticationResponse::FAIL:
 170                                         // Hope it's not a PreAuthenticationProvider that failed...
 171                                         $authRes = 'Failed';
 172                                         $message = $res->message;
 173                                         \MediaWiki\Logger\LoggerFactory::getInstance( 'authentication' )
 174                                                 ->info( __METHOD__ . ': Authentication failed: '
 175                                                 . $message->inLanguage( 'en' )->plain() );
 176                                         break;
 177
 178                                 default:
 179                                         \MediaWiki\Logger\LoggerFactory::getInstance( 'authentication' )
 180                                                 ->info( __METHOD__ . ': Authentication failed due to unsupported response type: '
 181                                                 . $res->status, $this->getAuthenticationResponseLogData( $res ) );
 182                                         $authRes = 'Aborted';
 183                                         break;
 184                         }
 185                 }
 186
 187                 $result['result'] = $authRes;
 188                 switch ( $authRes ) {
 189                         case 'Success':
 190                                 $user = $session->getUser();
 191
 192                                 ApiQueryInfo::resetTokenCache();
 193
 194                                 // Deprecated hook
 195                                 $injected_html = '';
 196                                 Hooks::run( 'UserLoginComplete', [ &$user, &$injected_html, true ] );
 197
 198                                 $result['lguserid'] = intval( $user->getId() );
 199                                 $result['lgusername'] = $user->getName();
 200                                 break;
 201
 202                         case 'NeedToken':
 203                                 $result['token'] = $token->toString();
 204                                 $this->addDeprecation( 'apiwarn-deprecation-login-token', 'action=login&!lgtoken' );
 205                                 break;
 206
 207                         case 'WrongToken':
 208                                 break;
 209
 210                         case 'Failed':
 211                                 $result['reason'] = $this->formatMessage( $message );
 212                                 break;
 213
 214                         case 'Aborted':
 215                                 $result['reason'] = $this->formatMessage(
 216                                         $this->getConfig()->get( 'EnableBotPasswords' )
 217                                                 ? 'api-login-fail-aborted'
 218                                                 : 'api-login-fail-aborted-nobotpw'
 219                                 );
 220                                 break;
 221
 222                         default:
 223                                 ApiBase::dieDebug( __METHOD__, "Unhandled case value: {$authRes}" );
 224                 }
 225
 226                 $this->getResult()->addValue( null, 'login', $result );
 227
 228                 if ( $loginType === 'LoginForm' && isset( LoginForm::$statusCodes[$authRes] ) ) {
 229                         $authRes = LoginForm::$statusCodes[$authRes];
 230                 }
 231                 LoggerFactory::getInstance( 'authevents' )->info( 'Login attempt', [
 232                         'event' => 'login',
 233                         'successful' => $authRes === 'Success',
 234                         'loginType' => $loginType,
 235                         'status' => $authRes,
 236                 ] );
 237         }
 238
 239         public function isDeprecated() {
 240                 return !$this->getConfig()->get( 'EnableBotPasswords' );
 241         }
 242
 243         public function mustBePosted() {
 244                 return true;
 245         }
 246
 247         public function isReadMode() {
 248                 return false;
 249         }
 250
 251         public function getAllowedParams() {
 252                 return [
 253                         'name' => null,
 254                         'password' => [
 255                                 ApiBase::PARAM_TYPE => 'password',
 256                         ],
 257                         'domain' => null,
 258                         'token' => [
 259                                 ApiBase::PARAM_TYPE => 'string',
 260                                 ApiBase::PARAM_REQUIRED => false, // for BC
 261                                 ApiBase::PARAM_SENSITIVE => true,
 262                                 ApiBase::PARAM_HELP_MSG => [ 'api-help-param-token', 'login' ],
 263                         ],
 264                 ];
 265         }
 266
 267         protected function getExamplesMessages() {
 268                 return [
 269                         'action=login&lgname=user&lgpassword=password'
 270                                 => 'apihelp-login-example-gettoken',
 271                         'action=login&lgname=user&lgpassword=password&lgtoken=123ABC'
 272                                 => 'apihelp-login-example-login',
 273                 ];
 274         }
 275
 276         public function getHelpUrls() {
 277                 return 'https://www.mediawiki.org/wiki/Special:MyLanguage/API:Login';
 278         }
 279
 280         /**
 281          * Turns an AuthenticationResponse into a hash suitable for passing to Logger
 282          * @param AuthenticationResponse $response
 283          * @return array
 284          */
 285         protected function getAuthenticationResponseLogData( AuthenticationResponse $response ) {
 286                 $ret = [
 287                         'status' => $response->status,
 288                 ];
 289                 if ( $response->message ) {
 290                         $ret['message'] = $response->message->inLanguage( 'en' )->plain();
 291                 };
 292                 $reqs = [
 293                         'neededRequests' => $response->neededRequests,
 294                         'createRequest' => $response->createRequest,
 295                         'linkRequest' => $response->linkRequest,
 296                 ];
 297                 foreach ( $reqs as $k => $v ) {
 298                         if ( $v ) {
 299                                 $v = is_array( $v ) ? $v : [ $v ];
 300                                 $reqClasses = array_unique( array_map( 'get_class', $v ) );
 301                                 sort( $reqClasses );
 302                                 $ret[$k] = implode( ', ', $reqClasses );
 303                         }
 304                 }
 305                 return $ret;
 306         }
 307 }